Cheap flights from Bangkok to Colombo from C$ 250

The month of November is, on average, the cheapest month to fly to Colombo from Bangkok, with most prices found around C$ 402. If you aren’t able to travel during the month of November, then book flights to Colombo from Bangkok during January instead. Flights to Colombo in January, while not as cheap as those in November, still average around C$ 418.

The cheapest day to depart on your flight to Colombo is on a Thursday when prices can be found for as low as C$ 255. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around C$ 608. These prices are subject to change though, so be sure to set up a Price Alert for flights to Colombo.

Our data shows that the cheapest Bangkok to Colombo flights are usually those with departure times in the evening. Our users have found flights to Colombo in the evening for as low as C$ 459. In the afternoon is when there is more demand to fly to Colombo, so prices are often more expensive at around C$ 628 per ticket.

Fly from Bangkok Suvarnabhumi to Colombo Bandaranaike Intl for the best Bangkok - Colombo flight prices

You are more likely to see cheaper flights to Colombo from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Colombo for around C$ 517 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colombo from Bangkok for as low as C$ 422 on momondo.

There is only 1 cabin class available to choose from on Bangkok to Colombo flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Air India and Vietnam Airlines are the most popular carriers operating from Bangkok to Colombo

SriLankan Airlines, Thai AirAsia and Thai Airways are the top three most popular airlines that fly to Colombo from Bangkok according to our data. SriLankan Airlines is the first choice among our users, with 45% of people opting to fly with this airline when travelling to Colombo. Keep in mind that there are 3 different airlines that fly to Colombo on a routine basis, so you have a few additional options to choose from.

Historically, on average around 16% of flights between Bangkok and Colombo have experienced a delay on any given week. The average delay length over the past 12 months has been 109 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Sunday is statistically the day of the week that experiences the fewest delays on this flight route. Saturday has historically seen more delays on average compared to the rest of the week.

According to our data, Thai Airways has had the least delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

10 flights are operational daily from Bangkok to Colombo as of September 2026. The most popular departure time for this route is 7:00a.m., with 38% of flights per day taking off at noon.

73 flights are operational weekly from Bangkok to Colombo as of September 2026. The most popular departure day for this route is Fri, with 19% of flights per week taking off on this day.